YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1900 | ----- | z | ----- | z | ----- | z | 33.62 | d | 41.60 | a | 48.93 | 51.55 | 58.00 | a | 49.93 | 46.63 | a | 22.25 | b | 13.78 | d | 40.70 | c | |||
1901 | 6.32 | 0.82 | 10.48 | 28.97 | 36.60 | a | 48.70 | 54.90 | 55.57 | a | 44.47 | 37.58 | 22.73 | 11.90 | 29.92 | |||||||||||
1902 | 8.77 | 9.04 | 22.58 | 30.10 | 40.97 | a | 43.93 | 55.42 | 51.13 | a | 43.93 | a | 35.94 | 30.13 | 10.84 | 31.90 | ||||||||||
1903 | 10.10 | 3.89 | 21.68 | 29.50 | 40.52 | 45.67 | 54.26 | 49.77 | a | 46.55 | a | ----- | z | ----- | z | ----- | z | 33.55 | c | |||||||
1904 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1905 | ----- | z | ----- | z | ----- | z | 28.60 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 28.60 | k | |
1906 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1907 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1908 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1909 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1912 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.57 | c | 61.27 | e | 50.14 | a | 36.45 | 29.43 | 22.48 | 43.39 | f | |||
1914 | 15.35 | 0.89 | 14.29 | 32.00 | w | 51.04 | c | 62.17 | ----- | z | 54.42 | g | ----- | z | 42.03 | 25.86 | a | 12.42 | 28.01 | d | ||||||
1915 | 4.59 | b | ----- | z | 19.19 | 42.40 | 41.41 | b | 44.85 | d | ----- | z | 50.55 | 48.97 | ----- | z | ----- | z | ----- | z | 35.99 | e | ||||
1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 22.17 | f | 17.87 | 17.87 | k | |
1939 | 11.10 | a | 5.68 | 12.57 | a | 25.93 | 38.87 | 50.03 | 54.50 | a | 53.57 | a | 46.97 | a | 36.53 | a | 25.67 | 24.03 | 32.12 | |||||||
1940 | 8.90 | 15.79 | a | 13.71 | 28.87 | 37.94 | 46.47 | 54.77 | 56.55 | 50.97 | 40.94 | 25.97 | 18.37 | a | 33.27 | |||||||||||
1941 | 13.58 | 13.04 | 16.39 | 34.47 | 44.60 | a | 48.70 | 56.55 | 54.26 | 51.00 | 38.81 | 28.63 | 22.13 | 35.18 | ||||||||||||
1942 | 14.17 | a | 12.43 | 24.03 | 36.60 | 37.39 | 48.24 | a | 54.97 | 54.39 | 44.72 | a | 38.42 | 24.73 | 13.87 | a | 33.66 | |||||||||
1943 | 4.90 | 4.54 | d | 10.77 | 28.70 | 40.34 | b | 47.20 | 58.26 | 56.55 | 44.53 | 38.03 | 26.10 | 16.00 | a | 31.33 | ||||||||||
1944 | 21.10 | 13.90 | 17.39 | 26.70 | 44.03 | 48.53 | 55.65 | 57.35 | 50.30 | 37.63 | a | 32.13 | 14.97 | a | 34.97 | |||||||||||
1945 | 7.48 | 9.37 | a | 27.42 | 30.57 | 34.81 | 46.23 | 53.70 | a | 56.00 | 47.43 | 34.00 | 19.03 | 13.84 | 31.66 | |||||||||||
1946 | 11.55 | 6.75 | 27.74 | 33.63 | 37.55 | 46.73 | 57.71 | 52.61 | 47.30 | 39.48 | 26.60 | 15.10 | 33.56 | |||||||||||||
1947 | 12.74 | 8.89 | 14.65 | 25.90 | 36.26 | 45.00 | 54.03 | 59.71 | 47.27 | 44.53 | a | 23.10 | 16.68 | 32.40 | ||||||||||||
1948 | 2.55 | 5.14 | 14.90 | 32.27 | 36.97 | 47.40 | 56.24 | b | 55.19 | 47.67 | 39.03 | 31.03 | 15.77 | 32.01 | ||||||||||||
1949 | 12.48 | 9.64 | 17.87 | a | 33.03 | 40.48 | 51.57 | 58.13 | 57.19 | 47.33 | 41.23 | 28.20 | 15.23 | 34.37 | ||||||||||||
1950 | 2.52 | 9.93 | 13.16 | 25.47 | 37.26 | 47.60 | 52.26 | 45.81 | 46.00 | 39.77 | 22.83 | 12.94 | 29.63 | |||||||||||||
1951 | 8.74 | 8.46 | 13.97 | a | 29.97 | 41.77 | 46.77 | 55.16 | 51.13 | a | 45.17 | 36.52 | 18.53 | 12.84 | 30.75 | |||||||||||
1952 | 10.81 | 15.30 | b | 16.16 | 32.60 | 38.55 | 50.50 | 56.52 | 53.16 | 48.10 | 32.74 | 29.67 | 21.52 | 33.80 | ||||||||||||
1953 | 13.35 | 14.25 | 22.58 | 28.47 | 38.13 | 48.60 | 54.39 | 57.37 | a | 49.96 | b | 42.55 | 30.23 | 18.61 | 34.87 | |||||||||||
1954 | 7.17 | a | 21.68 | 18.26 | 29.83 | a | 36.65 | 51.90 | 54.06 | 53.45 | 48.00 | 38.58 | 31.45 | a | 19.26 | 34.19 | ||||||||||
1955 | 13.35 | 11.36 | 12.77 | 37.73 | 42.97 | 52.17 | 59.74 | 60.23 | 49.00 | 41.35 | 23.73 | 11.77 | 34.68 | |||||||||||||
1956 | 12.00 | 10.93 | a | 14.39 | 28.50 | 36.94 | 51.57 | 52.13 | 54.35 | 44.27 | 42.45 | 28.07 | 16.06 | 32.64 | ||||||||||||
1957 | 4.97 | 7.86 | 13.77 | 32.60 | 40.77 | 48.66 | a | 55.16 | 54.16 | 45.10 | 37.45 | 29.10 | 16.58 | 32.18 | ||||||||||||
1958 | 15.84 | 8.79 | 18.74 | 31.76 | a | 37.47 | a | 45.50 | 54.06 | 54.37 | a | 49.73 | 40.45 | 27.90 | 7.94 | 32.71 | ||||||||||
1959 | 2.74 | 1.07 | 16.39 | 29.70 | 43.10 | 51.83 | 57.90 | 59.06 | 49.07 | 36.77 | 20.07 | 22.58 | 32.52 | |||||||||||||
1960 | 12.97 | 10.55 | 7.29 | 32.90 | 38.58 | 46.13 | 51.87 | 54.48 | 48.57 | 38.00 | 30.17 | 10.81 | 31.86 | |||||||||||||
1961 | 6.48 | 11.86 | 22.26 | 28.63 | 37.03 | a | 48.13 | 55.03 | 55.58 | 48.30 | 40.77 | 27.60 | 14.16 | 32.99 | ||||||||||||
1962 | 5.68 | 4.86 | 18.13 | 28.00 | 43.42 | 46.60 | 51.61 | 52.39 | 45.57 | 40.26 | 28.20 | 14.00 | 31.56 | |||||||||||||
1963 | 0.24 | b | -1.36 | 16.23 | 30.43 | 38.55 | 48.40 | 56.42 | 52.74 | 47.60 | 47.48 | 32.80 | 11.23 | 31.73 | ||||||||||||
1964 | 15.61 | 12.21 | 16.97 | 30.47 | 44.39 | 49.00 | 55.16 | 53.97 | 46.77 | 38.23 | 28.47 | 9.19 | 33.37 | |||||||||||||
1965 | 4.35 | 2.93 | 7.00 | 28.97 | 41.97 | 46.37 | 50.65 | 52.10 | 42.73 | 40.06 | 27.23 | 21.23 | 30.47 | |||||||||||||
1966 | 3.58 | 6.74 | a | 22.97 | 29.83 | 36.94 | 50.33 | 57.00 | 53.74 | 46.03 | 36.19 | 26.07 | 14.32 | 31.98 | ||||||||||||
1967 | 10.13 | -3.14 | 14.55 | 28.50 | 34.81 | 47.07 | 51.68 | 50.71 | 46.20 | 36.29 | 24.87 | 15.48 | 29.76 | |||||||||||||
1968 | 5.40 | a | 5.29 | a | 19.58 | 31.07 | 37.13 | a | 44.50 | 51.87 | 52.55 | 50.27 | 42.03 | 28.27 | 14.45 | 31.87 | ||||||||||
1969 | 11.90 | 8.36 | 11.97 | 30.63 | 39.90 | 43.43 | 51.32 | 56.00 | 47.53 | 34.52 | 25.87 | 16.06 | 31.46 | |||||||||||||
1970 | 2.94 | -1.43 | 9.19 | 28.93 | 38.74 | 48.60 | 56.10 | 55.29 | 49.33 | 38.32 | 26.03 | 13.68 | 30.48 | |||||||||||||
1971 | 6.00 | 5.35 | b | 12.32 | 28.00 | 35.42 | 48.27 | 49.81 | 50.20 | a | 46.70 | 43.00 | 26.53 | 12.87 | 30.37 | |||||||||||
1972 | -1.71 | -3.03 | 4.48 | 23.70 | 40.32 | 43.33 | 51.26 | 51.48 | 43.00 | d | 34.74 | 26.30 | 10.06 | 27.00 | ||||||||||||
1973 | 7.29 | 5.11 | 26.04 | c | 31.07 | 36.35 | 48.03 | 53.26 | 55.55 | 45.60 | 41.23 | 28.00 | 12.74 | 32.52 | ||||||||||||
1974 | 5.10 | -3.61 | 13.39 | 24.73 | 35.77 | 45.97 | 54.83 | b | 51.03 | 39.63 | 33.74 | 27.03 | 15.94 | 28.63 | ||||||||||||
1975 | 11.10 | a | 11.61 | 15.39 | 23.37 | 40.97 | 48.70 | 55.77 | 52.32 | 42.17 | 37.03 | 26.50 | 11.61 | 31.38 | ||||||||||||
1976 | 5.19 | 15.03 | 17.00 | 31.23 | 35.13 | 50.33 | 50.77 | 49.19 | 38.03 | 29.26 | 18.77 | 2.10 | b | 28.50 | ||||||||||||
1977 | ----- | z | 5.36 | 21.68 | 30.67 | 44.36 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 25.51 | h | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 8.59 | 7.49 | 16.42 | 30.17 | 39.44 | 48.15 | 54.58 | 54.14 | 46.77 | 38.77 | 26.56 | 14.89 | 32.01 | |||||||||||||
S.D. | 4.82 | 5.69 | 5.28 | 3.53 | 3.31 | 3.14 | 2.52 | 3.14 | 2.86 | 3.56 | 3.46 | 4.25 | 1.85 | |||||||||||||
SKEW | 0.18 | -0.08 | 0.16 | 0.88 | 1.03 | 1.94 | 0.17 | 0.02 | -0.90 | 0.05 | -0.63 | -0.08 | -0.45 | |||||||||||||
MAX | 21.10 | 21.68 | 27.74 | 42.40 | 51.04 | 62.17 | 60.57 | 61.27 | 51.00 | 47.48 | 32.80 | 24.03 | 35.18 | |||||||||||||
MIN | -1.71 | -3.61 | 4.48 | 23.37 | 34.81 | 43.33 | 49.81 | 45.81 | 38.03 | 29.26 | 18.53 | 2.10 | 27.00 | |||||||||||||
YRS | 43 | 43 | 44 | 45 | 45 | 44 | 43 | 44 | 44 | 43 | 43 | 44 | 40 |